On Fri, 2009-06-12 at 12:45 -0700, Andrey Yurovsky wrote:
> The card firmware does not set the Command Download Ready interrupt bit
> when IEEE PS mode is enabled, preventing the driver from sending
> commands (such as the command to exit IEEE PS mode) since there is no
> indication that the card is ready to accept commands.
>
> This patch works around the problem by using the the TX Download Ready
> bit in place of the Command Download Ready Bit while in IEEE PS mode.
> TX Download Ready is set in IEEE PS mode.
>
> Signed-off-by: Andrey Yurovsky <andrey@xxxxxxxxxxx>
> Signed-off-by: Javier Cardona <javier@xxxxxxxxxxx>
Acked-by: Dan Williams <dcbw@xxxxxxxxxx>
> ---
> drivers/net/wireless/libertas/if_spi.c | 7 ++++++-
> 1 files changed, 6 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
> index f8c2898..dc2a1f6 100644
> --- a/drivers/net/wireless/libertas/if_spi.c
> +++ b/drivers/net/wireless/libertas/if_spi.c
> @@ -875,7 +875,12 @@ static int lbs_spi_thread(void *data)
> err = if_spi_c2h_data(card);
> if (err)
> goto err;
> - if (hiStatus & IF_SPI_HIST_CMD_DOWNLOAD_RDY) {
> +
> + /* workaround: in PS mode, the card does not set the Command
> + * Download Ready bit, but it sets TX Download Ready. */
> + if (hiStatus & IF_SPI_HIST_CMD_DOWNLOAD_RDY ||
> + (card->priv->psstate != PS_STATE_FULL_POWER &&
> + (hiStatus & IF_SPI_HIST_TX_DOWNLOAD_RDY))) {
> /* This means two things. First of all,
> * if there was a previous command sent, the card has
> * successfully received it.
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
